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Which process that follows meiosis ensures that the chromosome number of an organism is maintained from one generation to the next?
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∙ 6y ago
Mitosis
Wiki User
∙ 11y ago
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What type of cell division creates X and Y?
The type of cell division that creates X and Y chromosomes is called meiosis. During meiosis, the cell undergoes two rounds of division, resulting in the production of four daughter cells. In humans, this process occurs in the cells that produce gametes (sperm and eggs), and it ensures that each gamete receives only one copy of each chromosome, including either an X or a Y chromosome in the case of sex cells.
Does sexual reproduction require meiosis?
The process of meiosis results in the production of gametes in which the number of chromosomes is reduced by half. During sygamy, two gametes fuse to form a new cell, and the number of chromosomes is restored to the full amount. Therefore, by coupling meiosis and syngamy, the organism ensures that the proper number of chromosomes will be maintained.
Why do some sperm cells have an x chromosome while other sperm cells have a y chromosome?
Chromosomes in adult cells come in pairs. Men's cells have an X Y pair of chromosome in them, women's have two X chromosomes and no Y. When sperm cells are made in the man the sperm get half of each pair of chromosomes and thus half will have the X and half the Y. When a woman makes an egg cell, these to get half her XX pair but all eggs will have an X chromosome. When a baby is made the egg and the sperm join up to give the fertilized egg matched pairs of chromosomes again. As half the sperm carry an X and half a Y, there is a 50% chance that the new egg will be XX (female) or XY (male) and this ensures that there is the same proportion of men and women in the world.
How many chromosomes do you have in a cell found in your elbow?
The X chromosome is one of the two sex chromosomes in humans (the other is the Y chromosome). The sex chromosomes form one of the 23 pairs of human chromosomes in each cell. The X chromosome spans about 155 million DNA building blocks (base pairs) and represents approximately 5 percent of the total DNA in cells. Each person normally has one pair of sex chromosomes in each cell. Females have two X chromosomes, while males have one X and one Y chromosome. Early in embryonic development in females, one of the two X chromosomes is randomly and permanently inactivated in cells other than egg cells. This phenomenon is called X-inactivation or Lyonization. X-inactivation ensures that females, like males, have one functional copy of the X chromosome in each body cell. Because X-inactivation is random, in normal females the X chromosome inherited from the mother is active in some cells, and the X chromosome inherited from the father is active in other cells. Some genes on the X chromosome escape X-inactivation. Many of these genes are located at the ends of each arm of the X chromosome in areas known as the pseudoautosomal regions. Although many genes are unique to the X chromosome, genes in the pseudoautosomal regions are present on both sex chromosomes. As a result, men and women each have two functional copies of these genes. Many genes in the pseudoautosomal regions are essential for normal development. Identifying genes on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. The X chromosome likely contains between 900 and 1,400 genes. These genes perform a variety of different roles in the body. (Note: So I believe your answer will be 46; 23x2)
CPI is itself a process that ensures continued improvement in?
Yes, the CPI is itself a process that ensures continued improvement in service delivery.
What is an organism most important activity?
To reproduce; or to replicate, this ensures that the organism lives on.
What process ensures that each new eukaryotic cell receives a copy of each chromosome?
Metoisis
What ensures that each new eukaryotic cell receives a copy of each chromosome?
Mitosis results in two identical cells being produced from the original cell. A copy of each chromosome is made before the cell divides and one of each chromosome goes to each new cell.
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Mutualism ensures that a cycle of the distribution of nutrients and energy is maintained.
What ensures an ecosystem won't collapse if one organism died?
jewz
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Information Assurance Officer
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During extensive energy usage it ensures that energy production is maintained and exercise can continue.
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the balance of naturalk and how to sustain ecological balance for futurgenerations
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The quality assurance by PDSA cycle ensures that quality control, quality management system and construction process is maintained.
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